{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "ransom", "arguments": ["victim", "payment method", "place", "damage amount", "attacker", "time", "price", "tool", "attack pattern"]}], "input": "According to Cisco , the Coinhoarder group is by far the largest phishing operation that has targeted Blockchain.info , the biggest Bitcoin wallet service online ."}
{"ransom": []}